Steam release.
That would be nice. OK, I understand, anti-piracy, supporting developers, etc. - fine. But don't make me pay additional cost like shipping fees, VAT, customs and God knows what more just to get a few alphanumeric characters called "key".
Not to mention I don't own blu-ray drive, so I will have to obtain it via "some other" method. I belive there are other people with similar "issue".